# 校验号码
def exam_phone():
    CN_mobile= [134, 135, 136, 137, 138, 139, 150, 151, 152, 157, 158, 159, 182, 183, 184, 187, 188]
    CN_union = [130, 131]
    CN_telecom = [133, 153, 180, 181]
    number = input('Enter Your number :')
    if len(number) != 11:
        print('Invalid length, Your number should be in 11 digits')
    else:
        if int(number[0:3]) in CN_mobile:
            print('CN_mobile')
        elif int(number[0:3]) in CN_union:
            print('CN_union')
        elif int(number[0:3]) in CN_telecom:
            print('CN_telecom')
exam_phone()